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<FONT color="green">001</FONT>    //  Copyright (c) 1998-2008 Adrian Kuhn &lt;akuhn(a)students.unibe.ch&gt;<a name="line.1"></a>
<FONT color="green">002</FONT>    //  <a name="line.2"></a>
<FONT color="green">003</FONT>    //  This file is part of ch.akuhn.util.<a name="line.3"></a>
<FONT color="green">004</FONT>    //  <a name="line.4"></a>
<FONT color="green">005</FONT>    //  ch.akuhn.util is free software: you can redistribute it and/or modify it<a name="line.5"></a>
<FONT color="green">006</FONT>    //  under the terms of the GNU Lesser General Public License as published by the<a name="line.6"></a>
<FONT color="green">007</FONT>    //  Free Software Foundation, either version 3 of the License, or (at your<a name="line.7"></a>
<FONT color="green">008</FONT>    //  option) any later version.<a name="line.8"></a>
<FONT color="green">009</FONT>    //  <a name="line.9"></a>
<FONT color="green">010</FONT>    //  ch.akuhn.util is distributed in the hope that it will be useful, but<a name="line.10"></a>
<FONT color="green">011</FONT>    //  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY<a name="line.11"></a>
<FONT color="green">012</FONT>    //  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public<a name="line.12"></a>
<FONT color="green">013</FONT>    //  License for more details.<a name="line.13"></a>
<FONT color="green">014</FONT>    //  <a name="line.14"></a>
<FONT color="green">015</FONT>    //  You should have received a copy of the GNU Lesser General Public License<a name="line.15"></a>
<FONT color="green">016</FONT>    //  along with ch.akuhn.util. If not, see &lt;http://www.gnu.org/licenses/&gt;.<a name="line.16"></a>
<FONT color="green">017</FONT>    // <a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    /*<a name="line.19"></a>
<FONT color="green">020</FONT>     * The original code in this class was obtained from <a name="line.20"></a>
<FONT color="green">021</FONT>     * <a name="line.21"></a>
<FONT color="green">022</FONT>     * https://www.iam.unibe.ch/scg/svn_repos/Sources/ch.akuhn.util/src/magic/Files.java<a name="line.22"></a>
<FONT color="green">023</FONT>     * <a name="line.23"></a>
<FONT color="green">024</FONT>     * Major modifications to this file include:<a name="line.24"></a>
<FONT color="green">025</FONT>     * &lt;ul&gt;&lt;li&gt;removal of unwanted methods endsWith, openWrite, openRead, and close&lt;/li&gt;<a name="line.25"></a>
<FONT color="green">026</FONT>     *         &lt;li&gt;rewrite of main method.&lt;/li&gt;<a name="line.26"></a>
<FONT color="green">027</FONT>     *         &lt;li&gt;added method createSuffixFilter(String[])&lt;/li&gt;<a name="line.27"></a>
<FONT color="green">028</FONT>     *         &lt;li&gt;renamed 'all' methods to 'getFiles'.<a name="line.28"></a>
<FONT color="green">029</FONT>     *         &lt;li&gt;does not add hidden files to the queue.<a name="line.29"></a>
<FONT color="green">030</FONT>     * &lt;/ul&gt;<a name="line.30"></a>
<FONT color="green">031</FONT>     */<a name="line.31"></a>
<FONT color="green">032</FONT>    <a name="line.32"></a>
<FONT color="green">033</FONT>    package org.uutuc.util.io;<a name="line.33"></a>
<FONT color="green">034</FONT>    <a name="line.34"></a>
<FONT color="green">035</FONT>    import java.io.File;<a name="line.35"></a>
<FONT color="green">036</FONT>    import java.io.FileFilter;<a name="line.36"></a>
<FONT color="green">037</FONT>    import java.util.Iterator;<a name="line.37"></a>
<FONT color="green">038</FONT>    import java.util.LinkedList;<a name="line.38"></a>
<FONT color="green">039</FONT>    import java.util.NoSuchElementException;<a name="line.39"></a>
<FONT color="green">040</FONT>    import java.util.Set;<a name="line.40"></a>
<FONT color="green">041</FONT>    import java.util.regex.Pattern;<a name="line.41"></a>
<FONT color="green">042</FONT>    <a name="line.42"></a>
<FONT color="green">043</FONT>    public class Files {<a name="line.43"></a>
<FONT color="green">044</FONT>    <a name="line.44"></a>
<FONT color="green">045</FONT>            public static FileFilter createPatternFilter(final String[] patternStrings) {<a name="line.45"></a>
<FONT color="green">046</FONT>                    int length = patternStrings == null ? 0 : patternStrings.length;<a name="line.46"></a>
<FONT color="green">047</FONT>                    final Pattern[] patterns = new Pattern[length];<a name="line.47"></a>
<FONT color="green">048</FONT>                    for (int i = 0; i &lt; length; ++i) {<a name="line.48"></a>
<FONT color="green">049</FONT>                            patterns[i] = Pattern.compile(patternStrings[i]);<a name="line.49"></a>
<FONT color="green">050</FONT>                    }<a name="line.50"></a>
<FONT color="green">051</FONT>                    return new FileFilter() {<a name="line.51"></a>
<FONT color="green">052</FONT>                            public boolean accept(File file) {<a name="line.52"></a>
<FONT color="green">053</FONT>                                    if (patterns.length == 0) {<a name="line.53"></a>
<FONT color="green">054</FONT>                                            return true;<a name="line.54"></a>
<FONT color="green">055</FONT>                                    }<a name="line.55"></a>
<FONT color="green">056</FONT>                                    else {<a name="line.56"></a>
<FONT color="green">057</FONT>                                            String path = file.getName();<a name="line.57"></a>
<FONT color="green">058</FONT>                                            for (Pattern pattern : patterns) {<a name="line.58"></a>
<FONT color="green">059</FONT>                                                    if (pattern.matcher(path).find()) {<a name="line.59"></a>
<FONT color="green">060</FONT>                                                            return true;<a name="line.60"></a>
<FONT color="green">061</FONT>                                                    }<a name="line.61"></a>
<FONT color="green">062</FONT>                                            }<a name="line.62"></a>
<FONT color="green">063</FONT>                                            return false;<a name="line.63"></a>
<FONT color="green">064</FONT>                                    }<a name="line.64"></a>
<FONT color="green">065</FONT>                            }<a name="line.65"></a>
<FONT color="green">066</FONT>                    };<a name="line.66"></a>
<FONT color="green">067</FONT>            }<a name="line.67"></a>
<FONT color="green">068</FONT>    <a name="line.68"></a>
<FONT color="green">069</FONT>            public static FileFilter createSuffixFilter(final String[] suffixes, final String[] exclusionSuffixes) {<a name="line.69"></a>
<FONT color="green">070</FONT>                    return new FileFilter() {<a name="line.70"></a>
<FONT color="green">071</FONT>    <a name="line.71"></a>
<FONT color="green">072</FONT>                            public boolean accept(File file) {<a name="line.72"></a>
<FONT color="green">073</FONT>                                    if (suffixes == null) return true;<a name="line.73"></a>
<FONT color="green">074</FONT>                                    if (suffixes.length == 0) return true;<a name="line.74"></a>
<FONT color="green">075</FONT>                                    else {<a name="line.75"></a>
<FONT color="green">076</FONT>                                            if (exclusionSuffixes != null) {<a name="line.76"></a>
<FONT color="green">077</FONT>                                                    for (String exclusionSuffix : exclusionSuffixes) {<a name="line.77"></a>
<FONT color="green">078</FONT>                                                            if (file.getName().endsWith(exclusionSuffix)) return false;<a name="line.78"></a>
<FONT color="green">079</FONT>                                                    }<a name="line.79"></a>
<FONT color="green">080</FONT>                                            }<a name="line.80"></a>
<FONT color="green">081</FONT>                                            if (suffixes != null) {<a name="line.81"></a>
<FONT color="green">082</FONT>                                                    for (String suffix : suffixes) {<a name="line.82"></a>
<FONT color="green">083</FONT>                                                            if (file.getName().endsWith(suffix)) return true;<a name="line.83"></a>
<FONT color="green">084</FONT>                                                    }<a name="line.84"></a>
<FONT color="green">085</FONT>                                            }<a name="line.85"></a>
<FONT color="green">086</FONT>                                    }<a name="line.86"></a>
<FONT color="green">087</FONT>                                    return false;<a name="line.87"></a>
<FONT color="green">088</FONT>                            }<a name="line.88"></a>
<FONT color="green">089</FONT>                    };<a name="line.89"></a>
<FONT color="green">090</FONT>            }<a name="line.90"></a>
<FONT color="green">091</FONT>    <a name="line.91"></a>
<FONT color="green">092</FONT>            public static Iterable&lt;File&gt; getFiles(final File folder, final Set&lt;String&gt; fileNames) {<a name="line.92"></a>
<FONT color="green">093</FONT>                    return new Iterable&lt;File&gt;() {<a name="line.93"></a>
<FONT color="green">094</FONT>    <a name="line.94"></a>
<FONT color="green">095</FONT>                            public Iterator&lt;File&gt; iterator() {<a name="line.95"></a>
<FONT color="green">096</FONT>                                    return new Iterator&lt;File&gt;() {<a name="line.96"></a>
<FONT color="green">097</FONT>                                            private LinkedList&lt;File&gt; queue = new LinkedList&lt;File&gt;();<a name="line.97"></a>
<FONT color="green">098</FONT>                                            {<a name="line.98"></a>
<FONT color="green">099</FONT>                                                    queue.offer(folder);<a name="line.99"></a>
<FONT color="green">100</FONT>                                                    processDirectories();<a name="line.100"></a>
<FONT color="green">101</FONT>                                            }<a name="line.101"></a>
<FONT color="green">102</FONT>    <a name="line.102"></a>
<FONT color="green">103</FONT>                                            public boolean hasNext() {<a name="line.103"></a>
<FONT color="green">104</FONT>                                                    this.processDirectories();<a name="line.104"></a>
<FONT color="green">105</FONT>                                                    return !queue.isEmpty();<a name="line.105"></a>
<FONT color="green">106</FONT>                                            }<a name="line.106"></a>
<FONT color="green">107</FONT>    <a name="line.107"></a>
<FONT color="green">108</FONT>                                            public File next() {<a name="line.108"></a>
<FONT color="green">109</FONT>                                                    this.processDirectories();<a name="line.109"></a>
<FONT color="green">110</FONT>                                                    if (queue.isEmpty()) throw new NoSuchElementException();<a name="line.110"></a>
<FONT color="green">111</FONT>                                                    return queue.poll();<a name="line.111"></a>
<FONT color="green">112</FONT>                                            }<a name="line.112"></a>
<FONT color="green">113</FONT>    <a name="line.113"></a>
<FONT color="green">114</FONT>                                            private void processDirectories() {<a name="line.114"></a>
<FONT color="green">115</FONT>                                                    while (!queue.isEmpty()) {<a name="line.115"></a>
<FONT color="green">116</FONT>                                                            if (!queue.peek().isDirectory()) break;<a name="line.116"></a>
<FONT color="green">117</FONT>                                                            File next = queue.poll();<a name="line.117"></a>
<FONT color="green">118</FONT>                                                            for (File file : next.listFiles()) {<a name="line.118"></a>
<FONT color="green">119</FONT>                                                                    String fileName = file.getName();<a name="line.119"></a>
<FONT color="green">120</FONT>                                                                    if (file.getName().startsWith(".")) continue;<a name="line.120"></a>
<FONT color="green">121</FONT>                                                                    if (file.isDirectory() || fileNames.contains(fileName)) {<a name="line.121"></a>
<FONT color="green">122</FONT>                                                                            queue.offer(file);<a name="line.122"></a>
<FONT color="green">123</FONT>                                                                    }<a name="line.123"></a>
<FONT color="green">124</FONT>                                                            }<a name="line.124"></a>
<FONT color="green">125</FONT>                                                    }<a name="line.125"></a>
<FONT color="green">126</FONT>                                            }<a name="line.126"></a>
<FONT color="green">127</FONT>    <a name="line.127"></a>
<FONT color="green">128</FONT>                                            public void remove() {<a name="line.128"></a>
<FONT color="green">129</FONT>                                                    throw new UnsupportedOperationException();<a name="line.129"></a>
<FONT color="green">130</FONT>                                            }<a name="line.130"></a>
<FONT color="green">131</FONT>    <a name="line.131"></a>
<FONT color="green">132</FONT>                                    };<a name="line.132"></a>
<FONT color="green">133</FONT>                            }<a name="line.133"></a>
<FONT color="green">134</FONT>                    };<a name="line.134"></a>
<FONT color="green">135</FONT>    <a name="line.135"></a>
<FONT color="green">136</FONT>            }<a name="line.136"></a>
<FONT color="green">137</FONT>    <a name="line.137"></a>
<FONT color="green">138</FONT>            public static Iterable&lt;File&gt; getFiles(final File folder, final FileFilter filter) {<a name="line.138"></a>
<FONT color="green">139</FONT>                    return new Iterable&lt;File&gt;() {<a name="line.139"></a>
<FONT color="green">140</FONT>    <a name="line.140"></a>
<FONT color="green">141</FONT>                            public Iterator&lt;File&gt; iterator() {<a name="line.141"></a>
<FONT color="green">142</FONT>                                    return new Iterator&lt;File&gt;() {<a name="line.142"></a>
<FONT color="green">143</FONT>                                            private LinkedList&lt;File&gt; queue = new LinkedList&lt;File&gt;();<a name="line.143"></a>
<FONT color="green">144</FONT>                                            {<a name="line.144"></a>
<FONT color="green">145</FONT>                                                    queue.offer(folder);<a name="line.145"></a>
<FONT color="green">146</FONT>                                                    processDirectories();<a name="line.146"></a>
<FONT color="green">147</FONT>                                            }<a name="line.147"></a>
<FONT color="green">148</FONT>    <a name="line.148"></a>
<FONT color="green">149</FONT>                                            public boolean hasNext() {<a name="line.149"></a>
<FONT color="green">150</FONT>                                                    this.processDirectories();<a name="line.150"></a>
<FONT color="green">151</FONT>                                                    return !queue.isEmpty();<a name="line.151"></a>
<FONT color="green">152</FONT>                                            }<a name="line.152"></a>
<FONT color="green">153</FONT>    <a name="line.153"></a>
<FONT color="green">154</FONT>                                            public File next() {<a name="line.154"></a>
<FONT color="green">155</FONT>                                                    this.processDirectories();<a name="line.155"></a>
<FONT color="green">156</FONT>                                                    if (queue.isEmpty()) throw new NoSuchElementException();<a name="line.156"></a>
<FONT color="green">157</FONT>                                                    return queue.poll();<a name="line.157"></a>
<FONT color="green">158</FONT>                                            }<a name="line.158"></a>
<FONT color="green">159</FONT>    <a name="line.159"></a>
<FONT color="green">160</FONT>                                            private void processDirectories() {<a name="line.160"></a>
<FONT color="green">161</FONT>                                                    while (!queue.isEmpty()) {<a name="line.161"></a>
<FONT color="green">162</FONT>                                                            if (!queue.peek().isDirectory()) break;<a name="line.162"></a>
<FONT color="green">163</FONT>                                                            File next = queue.poll();<a name="line.163"></a>
<FONT color="green">164</FONT>                                                            for (File each : next.listFiles()) {<a name="line.164"></a>
<FONT color="green">165</FONT>                                                                    if (each.getName().startsWith(".")) continue;<a name="line.165"></a>
<FONT color="green">166</FONT>                                                                    if (each.isDirectory() || filter == null || filter.accept(each)) {<a name="line.166"></a>
<FONT color="green">167</FONT>                                                                            queue.offer(each);<a name="line.167"></a>
<FONT color="green">168</FONT>                                                                    }<a name="line.168"></a>
<FONT color="green">169</FONT>                                                            }<a name="line.169"></a>
<FONT color="green">170</FONT>                                                    }<a name="line.170"></a>
<FONT color="green">171</FONT>                                            }<a name="line.171"></a>
<FONT color="green">172</FONT>    <a name="line.172"></a>
<FONT color="green">173</FONT>                                            public void remove() {<a name="line.173"></a>
<FONT color="green">174</FONT>                                                    throw new UnsupportedOperationException();<a name="line.174"></a>
<FONT color="green">175</FONT>                                            }<a name="line.175"></a>
<FONT color="green">176</FONT>    <a name="line.176"></a>
<FONT color="green">177</FONT>                                    };<a name="line.177"></a>
<FONT color="green">178</FONT>                            }<a name="line.178"></a>
<FONT color="green">179</FONT>                    };<a name="line.179"></a>
<FONT color="green">180</FONT>            }<a name="line.180"></a>
<FONT color="green">181</FONT>    <a name="line.181"></a>
<FONT color="green">182</FONT>            public static Iterable&lt;File&gt; getFiles(String filename) {<a name="line.182"></a>
<FONT color="green">183</FONT>                    return getFiles(new File(filename));<a name="line.183"></a>
<FONT color="green">184</FONT>            }<a name="line.184"></a>
<FONT color="green">185</FONT>    <a name="line.185"></a>
<FONT color="green">186</FONT>            public static Iterable&lt;File&gt; getFiles(File file) {<a name="line.186"></a>
<FONT color="green">187</FONT>                    return getFiles(file, (FileFilter) null);<a name="line.187"></a>
<FONT color="green">188</FONT>            }<a name="line.188"></a>
<FONT color="green">189</FONT>    <a name="line.189"></a>
<FONT color="green">190</FONT>            public static Iterable&lt;File&gt; getFiles(String filename, FileFilter filter) {<a name="line.190"></a>
<FONT color="green">191</FONT>                    return getFiles(new File(filename), filter);<a name="line.191"></a>
<FONT color="green">192</FONT>            }<a name="line.192"></a>
<FONT color="green">193</FONT>    <a name="line.193"></a>
<FONT color="green">194</FONT>            public static Iterable&lt;File&gt; getFiles(String filename, String[] suffixes) {<a name="line.194"></a>
<FONT color="green">195</FONT>                    return getFiles(new File(filename), suffixes);<a name="line.195"></a>
<FONT color="green">196</FONT>            }<a name="line.196"></a>
<FONT color="green">197</FONT>    <a name="line.197"></a>
<FONT color="green">198</FONT>            public static Iterable&lt;File&gt; getFiles(String filename, String[] suffixes, String[] exclusionSuffixes) {<a name="line.198"></a>
<FONT color="green">199</FONT>                    return getFiles(new File(filename), suffixes, exclusionSuffixes);<a name="line.199"></a>
<FONT color="green">200</FONT>            }<a name="line.200"></a>
<FONT color="green">201</FONT>    <a name="line.201"></a>
<FONT color="green">202</FONT>            public static Iterable&lt;File&gt; getFiles(File file, String[] suffixes) {<a name="line.202"></a>
<FONT color="green">203</FONT>                    return getFiles(file, suffixes, null);<a name="line.203"></a>
<FONT color="green">204</FONT>            }<a name="line.204"></a>
<FONT color="green">205</FONT>    <a name="line.205"></a>
<FONT color="green">206</FONT>            public static Iterable&lt;File&gt; getFiles(File file, String[] suffixes, String[] exclusionSuffixes) {<a name="line.206"></a>
<FONT color="green">207</FONT>                    return getFiles(file, createSuffixFilter(suffixes, exclusionSuffixes));<a name="line.207"></a>
<FONT color="green">208</FONT>            }<a name="line.208"></a>
<FONT color="green">209</FONT>    <a name="line.209"></a>
<FONT color="green">210</FONT>            /**<a name="line.210"></a>
<FONT color="green">211</FONT>             * Makes the file name relative to the root directory by stripping the input<a name="line.211"></a>
<FONT color="green">212</FONT>             * directory prefix from the file name.<a name="line.212"></a>
<FONT color="green">213</FONT>             * <a name="line.213"></a>
<FONT color="green">214</FONT>             * @param file<a name="line.214"></a>
<FONT color="green">215</FONT>             *            The file whose name is to be relativized.<a name="line.215"></a>
<FONT color="green">216</FONT>             * @return The relativized path.<a name="line.216"></a>
<FONT color="green">217</FONT>             */<a name="line.217"></a>
<FONT color="green">218</FONT>            public static String stripRootDir(File rootFile, File file) {<a name="line.218"></a>
<FONT color="green">219</FONT>                    // get absolute paths for the root directory and the file<a name="line.219"></a>
<FONT color="green">220</FONT>                    String dirPath = rootFile.getAbsolutePath();<a name="line.220"></a>
<FONT color="green">221</FONT>                    String filePath = file.getAbsolutePath();<a name="line.221"></a>
<FONT color="green">222</FONT>    <a name="line.222"></a>
<FONT color="green">223</FONT>                    // strip the directory path from the beginning of the file path<a name="line.223"></a>
<FONT color="green">224</FONT>                    if (!filePath.startsWith(dirPath)) {<a name="line.224"></a>
<FONT color="green">225</FONT>                            String format = "%s does not start with %s";<a name="line.225"></a>
<FONT color="green">226</FONT>                            String message = String.format(format, filePath, dirPath);<a name="line.226"></a>
<FONT color="green">227</FONT>                            throw new IllegalArgumentException(message);<a name="line.227"></a>
<FONT color="green">228</FONT>                    }<a name="line.228"></a>
<FONT color="green">229</FONT>                    return filePath.substring(dirPath.length());<a name="line.229"></a>
<FONT color="green">230</FONT>            }<a name="line.230"></a>
<FONT color="green">231</FONT>    <a name="line.231"></a>
<FONT color="green">232</FONT>    }<a name="line.232"></a>




























































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